Q.Japanese Spindle Tree Condition.
My Japanese spindle tree some of its leaves have dark brown edges, approximately 5ft tall in my garden for 2 years, other than what I’ve mentioned it seems very healthy, thanks for any advice.

Certified GKH Gardening Expert
It could be an improper watering problem or a fungal issue. These articles should help:
https://hgic.clemson.edu/factsheet/euonymus-diseases-insect-pests/
https://www.gardeningknowhow.com/plant-problems/environmental/what-causes-brown-edges-on-leaves-of-plant.htm
https://www.gardeningknowhow.com/ornamental/shrubs/euonymus/growing-a-spindle-bush.htm
https://www.gardeningknowhow.com/ornamental/shrubs/euonymus